<script setup>
	import {
		ref
	} from 'vue';
	import {
		onLoad,
		onShareAppMessage,
		onShareTimeline
	} from "@dcloudio/uni-app"
	import {
		getStatusBarHeight
	} from "../../utils/system.js"
	import {
		apiGetSetupScore,
		apiWriteDownload,
		apiDetailWall
	} from "@/api/apis.js"
	const maskState = ref(true);
	// 弹窗状态
	const infoPopup = ref(null);
	const scorePopup = ref(null);

	const userScore = ref(0)
	const classList = ref([]);
	// 当前的ID
	const currentId = ref(null);
	const currentIndex = ref(0)
	// 壁纸信息，设为空对象，不会报错
	const currentInfo = ref({});
	// 数组存储浏览过的壁纸
	const readImgs = ref([]);
	// 评分状态，默认未评分
	const isScore = ref(false);
	//点击info弹窗
	const clickInfo = () => {
		infoPopup.value.open();
	}
	//点击关闭信息弹窗
	const clickInfoClose = () => {
		infoPopup.value.close();
	}
	//评分弹窗
	const clickScore = () => {
		// 判断是否存在userScore
		if (currentInfo.value.userScore) {
			// 改变评分状态
			isScore.value = true;
			// userScore的值变成数据库的值
			userScore.value = currentInfo.value.userScore;
		}
		scorePopup.value.open();
	}
	//关闭评分框
	const clickScoreClose = () => {
		scorePopup.value.close();
		// 初始化
		userScore.value = 0;
		// 评分状态
		isScore.value = false;
	}
	//确认评分
	const submitScore = async () => {
		// 加载
		uni.showLoading({
			title: "加载中..."
		})
		// 解构
		let {
			classid,
			_id: wallId
		} = currentInfo.value;
		// 调用接口，异步请求同步化
		let res = await apiGetSetupScore({
			classid,
			wallId,
			userScore: userScore.value
		})
		// 结束加载
		uni.hideLoading();
		//提示
		if (res.errCode === 0) {
			uni.showToast({
				title: "评分成功",
				icon: "none"
			})
			// 当前对象追加userScore
			classList.value[currentIndex.value].userScore = userScore.value;
			//缓存， 用于显示已评分的壁纸评分
			uni.setStorageSync("storgClassList", classList.value);
			// 评分成功调用关闭弹窗
			clickScoreClose();
		}
	}
	//遮罩层状态
	const maskChange = () => {
		maskState.value = !maskState.value
	}
	//返回上一页
	const goBack = () => {
		uni.navigateBack({
			success: () => {

			},
			fail: (err) => {
				uni.reLaunch({
					url: "/pages/index/index"
				})
			}
		})
	}
	//获取缓存
	const storgClassList = uni.getStorageSync("storgClassList") || [];
	classList.value = storgClassList.map(item => {
		return {
			...item,
			picurl: item.smallPicurl.replace("_small.webp", ".jpg")
		}
	})

	onLoad(async (e) => {
		// 赋值
		currentId.value = e.id;
		if (e.type == 'share') {

			let res = await apiDetailWall({
				id: currentId.value
			});

			classList.value = res.data.map(item => {
				return {
					...item,
					picurl: item.smallPicurl.replace("_small.webp", ".jpg")
				}
			})
		}
		// findIndex比较每一个_id与传入的id相等
		currentIndex.value = classList.value.findIndex(item => item._id == currentId.value)
		//赋值 壁纸信息，根据索引值
		currentInfo.value = classList.value[currentIndex.value]
		// 把浏览过的壁纸索引推入
		readImgsFun();
	})

	const swiperChange = (e) => {
		// 赋值索引值
		currentIndex.value = e.detail.current;
		//赋值 壁纸信息，根据索引值
		currentInfo.value = classList.value[currentIndex.value]
		// 把滑动过的壁纸索引推入
		readImgsFun();
		console.log(e);
	}
	console.log(classList.value);

	//点击下载
	const clickDownload = async () => {

		// #ifdef H5
		uni.showModal({
			content: "请长按保存壁纸",
			showCancel: false
		})
		// #endif

		// 除了H5，都适用uni.saveImageToPhotosAlbum(OBJECT)
		// #ifndef H5
		try {
			uni.showLoading({
				title: "下载中...",
				mask: true
			})
			// 解构
			let {
				classid,
				_id: wallId
			} = currentInfo.value;
			let res = await apiWriteDownload({
				classid,
				wallId
			})
			// 判断
			if (res.errCode != 0) throw res;
			// 获取图片信息
			uni.getImageInfo({
				// 网络地址
				src: currentInfo.value.picurl,
				success: (res) => {
					uni.saveImageToPhotosAlbum({
						// 获得临时地址
						filePath: res.path,
						success: (res) => {
							uni.showToast({
								title: "保存成功，请到相册查看",
								icon: "none"
							})
						},
						fail: err => {
							// 保存失败
							if (err.errMsg == 'saveImageToPhotosAlbum:fail cancel') {
								uni.showToast({
									title: '保存失败，请重新点击下载',
									icon: "none"
								})
								// 提示完，结束函数
								return;
							}

							uni.showModal({
								title: "授权提示",
								content: "需要授权保存相册",
								success: res => {

									if (res.confirm) {
										// 授权权限
										uni.openSetting({
											success: (setting) => {
												console.log(
													setting);
												// 判断授权
												if (setting
													.authSetting[
														'scope.writePhotosAlbum'
													]) {
													uni.showToast({
														title: "获取授权成功",
														icon: "none"
													})
												} else {
													uni.showToast({
														title: "获取权限失败",
														icon: "none"
													})
												}
											}
										})
									}
								}
							})
						},
						complete: () => {
							// 无论成功失败
							uni.hideLoading();
						}
					})

				}
			})
		} catch (err) {
			console.log(err);
			uni.hideLoading();
		}
		// #endif
	}

	//分享给好友
	onShareAppMessage((e) => {
		return {
			title: "壁纸",
			// "&type=share"读数据
			path: "/pages/preview/preview?id=" + currentId.value + "&type=share"
		}
	})


	//分享朋友圈
	onShareTimeline(() => {
		return {
			title: "壁纸",
			query: "id=" + currentId.value + "&type=share"
		}
	})

	function readImgsFun() {
		readImgs.value.push(
			// 把浏览过的壁纸索引推入
			//当前壁纸的前后壁纸都缓存
			currentIndex.value <= 0 ? classList.value.length - 1 : currentIndex.value - 1,
			currentIndex.value,
			currentIndex.value >= classList.value.length - 1 ? 0 : currentIndex.value + 1
		)
		//保证数组唯一性
		readImgs.value = [...new Set(readImgs.value)];
	}
</script>
<template>
	<view class="preview" v-if="currentInfo">
		<!-- 轮播图 -->
		<swiper circular :current="currentIndex" @change="swiperChange">
			<swiper-item v-for="(item,index) in classList" :key="item._id">
				<image v-if="readImgs.includes(index)" @click="maskChange" :src="item.picurl" mode="aspectFill"></image>
			</swiper-item>
		</swiper>

		<!-- 遮罩层 -->
		<view class="mask" v-if="maskState">
			<!-- 返回按钮 -->
			<!-- #ifndef MP-TOUTIAO -->
			<view class="goBack" @click="goBack" :style="{top:getStatusBarHeight()+'px'}">
				<uni-icons type="back" color="#fff" size="20"></uni-icons>
			</view>
			<!-- #endif -->

			<!-- 显示进度 动态数据-->
			<view class="count">{{currentIndex+1}} / {{classList.length}}</view>
			<!-- 时间-->
			<view class="time">
				<uni-dateformat :date="new Date()" format="hh:mm"></uni-dateformat>
			</view>
			<!-- 日期 -->
			<view class="date">
				<uni-dateformat :date="new Date()" format="MM月dd日"></uni-dateformat>
			</view>
			<!-- 功能按钮  -->
			<view class="footer">
				<view class="box" @click="clickInfo">
					<uni-icons type="info" size="28"></uni-icons>
					<view class="text">信息</view>
				</view>

				<view class="box" @click="clickScore">
					<uni-icons type="star" size="28"></uni-icons>
					<view class="text">{{currentInfo.score}}分</view>
				</view>

				<view class="box" @click="clickDownload">
					<uni-icons type="download" size="23"></uni-icons>
					<view class="text">下载</view>
				</view>
			</view>

		</view>


		<uni-popup ref="infoPopup" type="bottom">
			<view class="infoPopup">

				<!-- 标题 退出x -->
				<view class="popHeader">
					<view></view>
					<view class="title">壁纸信息</view>
					<view class="close" @click="clickInfoClose">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<!-- 滚动条 -->
				<scroll-view scroll-y>
					<view class="content">
						<view class="row">
							<view class="label">壁纸ID：</view>
							<text selectable class="value">{{currentInfo._id}}</text>
						</view>

						<!-- 				<view class="row">
							<view class="label">分类：</view>
							<text class="value class">明星美女</text>
						</view> -->

						<view class="row">
							<view class="label">发布者：</view>
							<text class="value">{{currentInfo.nickname}}</text>
						</view>

						<view class="row">
							<text class="label">评分：</text>
							<view class='value roteBox'>
								<uni-rate readonly touchable value="4" size="16" />
								<text class="score">{{currentInfo.score}}分</text>
							</view>
						</view>

						<view class="row">
							<text class="label">摘要：</text>
							<view class='value'>
								{{currentInfo.description}}
							</view>
						</view>

						<view class="row">
							<text class="label">标签：</text>
							<view class='value tabs'>
								<view class="tab" v-for="tab in currentInfo.tabs" :key="tab">
									{{tab}}
								</view>
							</view>
						</view>

						<view class="copyright">声明：XXXXXXXXXXX</view>
						<view class="safe-area-inset-bottom"></view>
					</view>
				</scroll-view>
			</view>
		</uni-popup>


		<uni-popup ref="scorePopup" :is-mask-click="false">
			<view class="scorePopup">

				<view class="popHeader">
					<view></view>
					<view class="title">{{isScore?'评分过了~':'壁纸评分'}}</view>
					<view class="close" @click="clickScoreClose()">
						<uni-icons type="closeempty" size="18" color="#999"></uni-icons>
					</view>
				</view>
				<!-- 内容 -->
				<view class="content">
					<uni-rate v-model="userScore" allowHalf :disabled="isScore" disabled-color="#FFCA3E" />
					<text class="text">{{userScore}}分</text>
				</view>
				<!-- 按钮 -->
				<view class="footer">
					<button @click="submitScore" :disabled="!userScore  || isScore" type="default" size="mini"
						plain>确认评分</button>
				</view>
			</view>
		</uni-popup>

	</view>
</template>
<style lang="scss" scoped>
	.preview {
		width: 100%;
		height: 100vh;
		position: relative;

		swiper {
			width: 100%;
			height: 100%;

			image {
				width: 100%;
				height: 100%;
			}
		}

		// 信息
		.mask {
			&>view {
				//让mask紧邻的view
				position: absolute;
				left: 0;
				margin: auto;
				color: #fff;
				right: 0;
				width: fit-content; //内容决定宽度
			}

			.goBack {
				width: 38px;
				height: 38px;
				background: rgba(0, 0, 0, 0.5);
				left: 30rpx;
				margin-left: 0;
				border-radius: 100px;
				top: 0;
				backdrop-filter: blur(10rpx);
				border: 1rpx solid rgba(255, 255, 255, 0.3);
				// 图标居中
				display: flex;
				align-items: center;
				justify-content: center;
			}

			.count {
				top: 10vh;
				background: rgba(0, 0, 0, 0.3); //背景
				font-size: 28rpx; //字号
				border-radius: 40rpx; //圆角
				padding: 8rpx 28rpx; //上下8 左右28
				backdrop-filter: blur(10rpx); //模糊
			}

			.time {
				font-size: 140rpx; //字体大小
				top: calc(10vh + 80rpx); //计算函数
				font-weight: 100; //字体加粗
				line-height: 1em; //行高
				text-shadow: 0 4rpx rgba(0, 0, 0, 0.3); //文字阴影
			}

			.date {
				font-size: 34rpx;
				top: calc(10vh + 230rpx);
				text-shadow: 0 2rpx rgba(0, 0, 0, 0.3);
			}

			.footer {
				background: rgba(255, 255, 255, 0.8);
				bottom: 10vh; //以底为基准
				width: 65vw;
				height: 120rpx;
				border-radius: 120rpx; //圆角
				color: #000;
				display: flex; //一行
				justify-content: space-around; //两端对齐
				align-items: center;
				box-shadow: 0 2rpx 0 rgba(0, 0, 0, 0.1); //阴影
				backdrop-filter: blur(20rpx); //模糊

				.box {
					display: flex;
					flex-direction: column; //文本行排列顺序、堆叠的方向 
					align-items: center;
					justify-content: center;
					padding: 2rpx 12rpx;

					.text {
						font-size: 26rpx;
						color: $text-font-color-2;
					}
				}
			}
		}

		// 标题 退出x
		.popHeader {
			display: flex;
			justify-content: space-between; //两端对齐
			align-items: center;

			.title {
				color: $text-font-color-2;
				font-size: 26rpx;
			}

			.close {
				padding: 6rpx;
			}
		}

		.infoPopup {
			background: #fff;
			padding: 30rpx;
			border-radius: 30rpx 30rpx 0 0; //左右圆角
			overflow: hidden; //超出隐藏

			scroll-view {
				max-height: 60vh; //最大高度

				.content {

					// 壁纸id
					.row {
						display: flex;
						padding: 16rpx 0;
						font-size: 32rpx;
						line-height: 1.7em; //行间距

						// 文字（不可选中
						.label {
							color: $text-font-color-3;
							width: 140rpx;
							text-align: right;
							font-size: 30rpx;
						}

						// 数据（可选
						.value {
							flex: 1;
							width: 0;
						}

						.roteBox {
							display: flex; //显示一行
							align-items: center; //垂直居中

							//文字分数
							.score {
								font-size: 26rpx;
								color: $text-font-color-2;
								padding-left: 10rpx;
							}
						}

						// 标签组
						.tabs {
							display: flex;
							flex-wrap: wrap;

							// 单个标签
							.tab {
								border: 1px solid $brand-theme-color;
								color: $brand-theme-color;
								font-size: 22rpx;
								padding: 10rpx 30rpx;
								border-radius: 40rpx; //圆角
								line-height: 1em;
								margin: 0 10rpx 10rpx 0;
							}
						}

						.class {
							color: $brand-theme-color;
						}


					}

					.copyright {
						font-size: 28rpx;
						padding: 20rpx;
						background: #F6F6F6;
						color: #666;
						border-radius: 10rpx;
						margin: 20rpx 0;
						line-height: 1.6em;
					}

				}
			}
		}

		.scorePopup {
			background: #fff;
			padding: 30rpx;
			width: 70vw;
			border-radius: 30rpx; //圆角

			// 内容
			.content {
				padding: 30rpx 0;
				display: flex; //居中
				justify-content: center;
				align-items: center;

				.text {
					color: #FFCA3E;
					padding-left: 10rpx;
					width: 80rpx;
					line-height: 1em;
					text-align: right; //右对齐
					font-size: 28rpx;
				}
			}

			.footer {
				padding: 10rpx 0;
				display: flex;
				align-items: center;
				justify-content: center;
			}
		}
	}
</style>